Does that include all of the military accoutrement?
Yes including everything.
The terrain following nose gear is scavenged off of decommissioned B52’s. And that’s an expensive unit that does not have to be bought or built new.
The antennas and communications is all standard in use military equipment. Its the same stuff they use in an AWAC.
The FFI (friend or foe identifier) is also front line military equipment just like the chaff and flares.
$4 billion for this plane is a lot of graft.